Mechanical amplifier

FIELD: mechanical engineering.

SUBSTANCE: mechanical amplifier comprises power differential (1), comparing differential (30), adjusting differential (2), control differential (36), and two self-braking mechanisms (3) and (4). The input of the power differential (1) is connected with the drive and input of control differential (2). Central wheels (17) and (18) of the power differential are secured to driven links (15) and (16) of the self-braking mechanisms and connected with central wheels (32) and (33) of the comparing differential so that the central wheels of the comparing differential rotate in opposite directions. Driving links (13) and (14) of the self-braking mechanisms are connected with central wheels (19) and (20) of the adjusting differential and central wheels (42) and (43) of the control differential so that the central wheels of the control differential rotate in opposite directions.

EFFECT: enhanced reliability and expanded functional capabilities.

1 dwg

 

The invention relates to mechanical engineering, in particular to actuators with amplifiers.

Known hydromechanical power on the author's certificate SU # 643672, 1972

A disadvantage of the known hydromechanical amplifier is a low speed when the reverse power of the engine.

The closest in technical essence to the present invention is hydromechanical power on the author's certificate SU # 823662, 1975, containing power motor, control motor, two planetary mechanism, a hydraulic system with two hydrocortosone.

The disadvantage of this device is low performance and lack of functionality.

The objective of the invention is to reduce response time to control and improve reliability and functionality.

The problem is solved due to the fact that the mechanical amplifier that contains the power differential, the differential comparison according to the formula of the invention contains the governing differential control differential and two effect mechanism operating in the mode of release. While the input of the power differential is connected to drive the input of the governing differential, Central wheel power differential is rigidly connected with the slave units effect mechanisms and soy is inany with the Central wheel differential comparison so to the Central wheel differential comparison rotated opposite directions. Leading links of effect mechanisms are connected with the Central wheels governing differential and with the Central wheels of the governing differential so that the Central wheel of the governing differential revolved in opposite directions. Central wheel governing differential locked mechanism leveling speed.

This set of features is new, not known from the prior art and allows to solve the problem, because the presence of the control differential allows you to change the speed of the leading elements effect mechanisms. Governing differential synchronizes the rotation speed of the leading elements effect mechanisms with the speed of rotation of the slave units effect mechanisms. Effect mechanisms operate in the mode of release, acting as mechanical amplifiers when the host link runs away from rolling his slave link, setting the speed of rotation of the latter. The closer the effect of the mechanism is made to the border of the automatic braking, the less force is needed to control the amplifier and the correspondingly higher gain (A.A. Blagonravov Mechanical demon is twincities transfer non-friction type. - M.: Mashinostroenie, 1977, p.59). The power differential distributes the momentum supplied to him from the actuator, between the main wheels of the differential comparison. The differential comparison, depending on the difference in speeds of rotation of the Central wheel, rotates the output gear with a certain velocity. The greater the difference in speeds of rotation of the Central wheel differential comparison, the faster it rotates the output gear. The leveling mechanism of the speed of rotation of the Central wheel governing differential equalizes the speed of their rotation in the absence of control.

The drawing shows a diagram of the mechanical amplifier.

The mechanical amplifier consists of:

the power differential 1 with the Central wheels 17, 18, 24 satellites and gear 22;

governing differential 2 with the Central wheels 19, 20, 25 satellites and gear 23;

differential comparison 30 with the Central wheels 32, 33, 35 satellites and gear 34;

the governing differential 36 with the Central wheels 42, 43, 44 satellites and gear 45;

effect mechanisms 3 and 4, each of which consists of slave units 15, 16 and the leading elements 13, 14;

gears 5, 6, 7, 8, 9, 10, 11, 12, 21, 26, 27, 28, 29, 31, 37, 38, 39, 40;

leveling mechanism of the speed of rotation of the Central wheel 41;

gear 34 is output is th link of the amplifier;

the gear 21 is a power input of the amplifier which is powered external source;

the gear 45 is a control input of the amplifier (served on the input signal).

The mechanical amplifier operates as follows. The gear 21 rotates at a constant speed from the engine or PTO. Thus in the strength of the kinematic chain 21-22-24-18-26-28-32-35 rotation is transmitted to the satellite 35 differential 30. According to another power kinematic chain 21-24-17-27-29-31-33-35 rotation is transmitted on the same satellite 35. thus rotation of the Central wheel 32 and 33 of the differential 30 is at the same speed and in opposite directions, the gear 34 remains stationary. Concurrently, the governing kinematic chain 21-23-25-20-12-10-14 rotation is transmitted to the host link 14 effect mechanism 4 through gears 38 and 40 on the mechanism of equalization of speeds of 41, and through gears 6 and 8 on the Central wheel 42 of the governing differential 36. On the other governing kinematic chain 21-23-25-19-11-9-13 rotation is transmitted to the host link 13 effect mechanism 3 through gears 37 and 39 on the mechanism of equalization of speeds of 41, and through gears 5 and 7 on the Central wheel 43 of the governing differential 36. Central wheel all differentials rotate with equal pairwise speed is mi, while 32 and 33 are rotated in opposite directions, and a gear 34 fixed. Central wheel 42 and 43 of the control differential gear 36 rotate in opposite directions and the gear 45 fixed. Thus, the entire mechanism is in equilibrium, and leading the links 13 and 14 effect mechanisms operating in mode release time to escape from rolling them slave units 15 and 16. Under the influence of the input gear 45 of the differential 36 starts to rotate, and the speed of rotation of the Central wheel 42 is reduced, and the Central wheel 43 is increased. Since the Central wheel 42 on the above kinematic chains connected with the driving member 14 effect mechanism 4 and the Central wheel 20 of the differential 2, and they reduce the speed of rotation. Slave link 16 effect mechanism 4 mode release, relying on the leading link 14 will also reduce the speed of rotation, in the end decrease the speed of rotation of the Central wheel 18 and 32 differentials 1 and 30, connected with the slave link 16. All differentials will be a redistribution of momentum between the Central wheels. The speed of rotation of the Central wheel 43, 19, 17 and 33 will increase proportionally, and leading link 13 effect of the mechanism 3 mode Otorbaev the Oia, manages to escape from the incident on his slave link 15, without creating obstacles to its rotation. Since the Central wheels 32 and 33 of the differential 30 to get a different speed of rotation, the gear 34 will rotate. The angle of rotation and speed of rotation of the gear 34 is proportional to the rotation angle and speed of rotation of the gear 45. During the rotation of the gear 45 in the opposite direction, the gear 34 will also change the direction of rotation. The mechanism of alignment of the rotation speeds of 41 in the absence of impacts on the gear 45 aligns the speed of rotation of the Central wheel 19 and 20 of the differential 2, setting zero speed of rotation of the gear 34. Thus, the use of this invention allows to reduce the response time to control and set the output gear any speed and direction of rotation.

1. The mechanical amplifier that contains the power differential, the differential comparison, characterized in that it contains governing differential control differential and two effect mechanism operating in the mode of release, with the input of the power differential is connected to drive the input of the governing differential, Central wheel power differential is rigidly connected with the slave units effect mechanisms and connected to the Central wheel di is ferential comparison so to the Central wheel differential comparison revolved in opposite directions, and the leading links of effect mechanisms are connected with the Central wheels governing differential and with the Central wheels of the governing differential so that the Central wheel of the governing differential revolved in opposite directions.

2. The mechanical amplifier according to claim 1, characterized in that the Central wheel of the regulatory closed differential mechanism leveling speed.



 

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